Method of spiral segmentation of image matrix of compact aztec code symbol

The helical segmentation method addresses the challenge of decoding compact Aztec Code symbols with irregular distortions and missing synchronization tracks, ensuring effective decoding on paper media.

RU2865651C1Active Publication Date: 2026-07-07SMART ENGINES SERVICE LLC
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Patent Information

Application Number
RU2025126005
Authority / Receiving Office
RU · RU
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2026-07-07
Estimated Expiration
2045-09-22

AI Technical Summary

Technical Problem

Existing methods for decoding compact Aztec Code symbols fail to account for irregular distortions and the absence of synchronization tracks, which are common in printed media like tickets and receipts, making automatic reading difficult.

Method used

A method for helical segmentation of the image matrix of compact Aztec Code symbols, involving localization, rectification, spiral traversal, primary estimation of module position, correction, gradient estimation, luminance dispersion estimation, and determining module color, to decode symbols with edge cuts and non-projective distortions.

Benefits of technology

Enables accurate decoding of compact Aztec Code symbols even with edge cuts and non-projective distortions, particularly effective for symbols printed on paper media.

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Abstract

FIELD: data character encoding.SUBSTANCE: claimed method for spiral segmentation of the image matrix of the compact Aztec Code symbol includes the stages of localization of the code symbols and determination of its parameters, rectification of the search template, spiral traversal, and also includes a primary estimate of the position of the next module, correction of the position of the module, offset estimation, gradient estimation, luminance dispersion estimation, and determination of the color of the module.EFFECT: providing a method for spiral segmentation of the image matrix of a compact Aztec Code symbol, which makes it possible to decode compact Aztec Code symbols in the case of cut-off edges of the code and in the presence of non-projective distortions, and is also capable of operating in the case of irregular deformations of the code matrix in the absence of synchronization tracks.4 cl, 5 dwg
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Citation Information

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